[Serusers] Monitoring SER

[Greger V. Teigre]

> My company has deployed SER on a very large scale across
> the US and I would like to develop a way to monitor critical
> parts of SER and the servers that SER runs on.
>
>
> I have several questions regarding monitoring SER.
>
> 1.  Can SER be SNMP enabled via something like SMUX or AgentX from net-snmp?
>   
Yes, a module can easily be implemented.
> 2.  Does SER have any native SNMP support or other monitoring/logging hooks
> built in?
>   
There exists an old SNMP module that has not been maintained for a long 
time. It will most likely not work with today's code, but it can be used 
as a starting point. We would gladly accept a contributed SNMP module :-)
> 3.  Do any mibs exist for SER / SIP?
> 4.  I am also still trying to find out if SER has anyway to detect when
> a user looses registration either via SER internals or external watchdog
> scripts etc.
>   

I'm not sure what you mean by "loosing registration". By definition, the 
user is registered until expiry, but it may well "loose" registration if 
it's behind a NAT that closes the port.  However, I assume you mean that 
the expiry is triggered without having received a new REGISTER. Look at 
the register module.  You will find code that cleans up expired 
contacts. I'm not sure if there is an existing hook for other modules to 
use.
g-)